.clear{
  content: '';
  clear: both;
}
html,body,a,p,div,span,ul,li{
  padding: 0;
  margin: 0;
}
li{
  list-style: none;
}
.div-box{
	text-align:center;
	line-height: 50px;
	height: 60px;
}
.box-content{
	margin-top: 10px;
}
.div-box>button{
	width: 80%;
	height: 50px;
}
